MOLD POWDER FOR CONTINUOUS CASTING OF STEEL, AND CONTINUOUS CASTING METHOD USING THE SAME

PROBLEM TO BE SOLVED: To provide mold powder which hardly causes seizure phenomena in spite of its high viscosity. SOLUTION: The ratio CaO/SiO2of a CaO component (wt.%) to an SiO2component (wt.%) satisfies the condition: 0.8≤CaO/SiO2≤1.2. A Li2O component (wt.%) satisfies the condition: 2.0≤Li2O≤5.0...

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Bibliographische Detailangaben
Hauptverfasser:	USHIO HAJIME, YAMAMOTO HIRONORI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide mold powder which hardly causes seizure phenomena in spite of its high viscosity. SOLUTION: The ratio CaO/SiO2of a CaO component (wt.%) to an SiO2component (wt.%) satisfies the condition: 0.8≤CaO/SiO2≤1.2. A Li2O component (wt.%) satisfies the condition: 2.0≤Li2O≤5.0. Li2O/Na2O is 10.0 or more. A solidification temperature TLL(°C) satisfies the condition: 1,135≤TLL≤1,185. Viscosity η (poise) satisfies the conditions: 1.5≤η≤1.8 at 1,300°C and 2.2≤η≤2.6 at 1,250°C. COPYRIGHT: (C)2007,JPO&INPIT